<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Component</title>
  </head>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
  <body>
    <h1>Hello Component</h1>
    <hr />
    <div id="app">{{newPrice}}</div>
  </body>

  <script>
    var app = new Vue({
      el: '#app',
      data: {
        price: 100
      },
      computed: {
        newPrice () {
          return this.price + '￥'
        }
      }
    })
  </script>
</html>
